Question:
Cyclohexanol is dehydrated to cyclohexene on heating with conc. \(H_2SO_4\). If the yield of this reaction is 75% how much cyclohexene will be obtained from 100 g of cyclohexanol?
Cyclohexanol is dehydrated to cyclohexene on heating with conc. \(H_2SO_4\). If the yield of this reaction is 75% how much cyclohexene will be obtained from 100 g of cyclohexanol?
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Always multiply theoretical yield by percentage yield.
Updated On: Apr 15, 2026
- 61.5 g
- 75.0 g
- 20.0 g
- 41.0 g
Show Solution
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The Correct Option is A
Solution and Explanation
Concept:
Dehydration:
\[
\text{Cyclohexanol} \rightarrow \text{Cyclohexene} + H_2O
\]
Step 1: Molar masses.
\[ C_6H_{12}O = 100, \quad C_6H_{10} = 82 \]
Step 2: Theoretical yield.
\[ 100 \, g \rightarrow 82 \, g \]
Step 3: Actual yield.
\[ 82 \times 0.75 = 61.5 \, g \]
Step 1: Molar masses.
\[ C_6H_{12}O = 100, \quad C_6H_{10} = 82 \]
Step 2: Theoretical yield.
\[ 100 \, g \rightarrow 82 \, g \]
Step 3: Actual yield.
\[ 82 \times 0.75 = 61.5 \, g \]
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